Magneto-Dielectric Synergy and Multiscale Hierarchical Structure Design Enable Flexible Multipurpose Microwave Absorption and Infrared Stealth Compatibility

• A multiscale hierarchical structure integrating wrinkled MXene IR shielding layer and flexible Fe3O4@C/PDMS microwave absorption layer achieves radar-IR compatible stealth. • The stealth device exhibits near-perfect stealth in X-band (8-12 GHz) and long-wave infrared (8-14 µm) with RCS reduction of -20 dB m2 and average IR emissivity of 0.35. • The device demonstrates multifunctionality including curved surface conformability, self-cleaning (contact angle ≈ 129°), and abrasion resistance (recovery time ≈ 5 s). • The design strategy leverages magneto-dielectric synergy and multiscale hierarchical structure to overcome conflicting microwave and IR cloaking mechanisms.